Valve-spring lifter.



P. PETERSON.

VALVE SPRING LIFTER. APPLIQATIorf rlp-BD JUNE s, 1909.

944,149. lament-,eay Dec. .21,v 1909.

wi tmzose @Ii iQE.

n rrnn sans aren PETER PETERSON, OF SOUTH BEND, INDIANA.

VALVE-SPRING LIFTER.

Maitre.

To all whom it ma-y concern: i Be it known that I, PETER PETERSON, a citizen ef the United States, residing at South Bend, in the county of St. Joseph and State of lndiana, have invented certain new and useful Improvements in Valve-.Spring Lifters, of which the following is a specification.

The object of this invention is to provide an extremely simple and effective tool designed for the purpose of facilitating the removal of engine valves such as most commonly used upon Aexplosive engines. To remove a valve of the above type, it is necessary to lift or compress the strong coiled spring by which the valve is normally held seated, and detach the key holding said spring in cooperation with the valve, after which operaftions the valve may be readily displaced.

rl`he present invention resides particularly in the peculiar construction of tool embodying the same, and o'ne o f the cssentialfeatures of the invention resides in the provision of means forming a part of the device whereby the tool is adapted to be used on engine cylinders even though the latter may .be surrounded by pipes, coils, rods, or similar objects which would prevent the employment of the tools designed for the purpose of the present invention.J v

For a'ifull comprehension of the details of construction ofthe invention, reference is to `be had to thefollowing description, and

to the accompanying drawings, in which:

Figure 1 is a side elevation showing the invention applied to an engine cylinderl in the operation of removing a valve spring, the valve casing of the cylinder being broken away to showthe engagement of the supportinfr standard of the tool with respect to the vave; Fig. 2 'is a perspective v1ew of the tool alone. i

Throughout the following detail description and on the. several igures of the drawings, similar parts are referred to by like reference characters.

pecifically desQIlllQing-the pec/ulir -v conf" struction of the inventibn,"andeferringto the drawings, the numeral 1 denotes an enginecylinder of ordinary type having the valve casing 2 in which' the valve 3 is mounted in the customary way,y said valve having the rod 4 about which the coiled spring 5 is arranged exterior to the casing Q, said spring being interposed between the cas1ng2 and a Specification of Letters Patent. Patent-ed Des, 21 1909, Application filed June 8, 1909. Serial No. 500,913.

washer 6 on/the rod 4, which washer is held in placeby a key 7 displaceable by transverse movement.

The'tool of which this invention consists comprises a standard 8 made' in the form of an angle bar and composed of spaced sides 8. The standard 8 is formed withv a foot 9 at its lower end and anoppositely extending supporting arm 10 at its upper end. Mounted on the arm 10 is a take-up'rod 11, the upper end ofvwhich is threaded to receive thereon a thumb-screw,A 12, and the lower end of which is connected with a flexible fulcrum n'ieniber 13 for a lever 14, said fulcrum member being preferably in the form of a chain. The lever 14 is formed so that its outer end constitutes a handle and at its middle portion said lever has a hook 15 to engage with the chain or fulcrum member 13. The inner end of the lever 14 is bifurcated as shown at 14. and between the-bifurcated portions is arranged a cup-plate 16 adapted to receive the lower end of the spring 5,'said plate being pivoted 'on the spaced bifurcated portions of the lever 14, and having a slot 17 therein to receive the rod 4 of the valve 3 in the operation of engaging the plate 1G with the spring 5 `preparatory to lifting the spring, wherebyl the key 7 may be removed.

On the foot 9 of the standard is pivoted a rest 18 which is arranged between the sides of the standard 8 'and adapted to be turned into a position substantially at a right angle tothe foot 9 for direct engagement with the top of the valve 3 in the operation ofthe device.r The rest 18 is adjustable, the pivot thereofY consisting of a screw, and said rest being pivoted some distance from a central point in its length can be readily turned so as to reverse the saine and properly between thestandard 8 with respect to the valve 3 in applying the tool/to valve casings of different sizes. l

The chain 13 being exible' will pass between or around pipes, rods, or any other parts which may/beflocated between the lever-14 andthe arm 10 .of the'standard 8 "and notwithstanding such arran ement of the chain a vertical lift of the va ve spring may be accomplished in the operation of the lever 14, this being highly important to effective use of the device. In the preliminary adjustment ofthe tool on the engine cylinder, the foot 9 is passed through the opening at the top of the valve casing 2 and the rest 18 engaged with the top of the valve. The lever 14 will, of course, be readily engaged with the lower end of the valve spring, and whenthe chain 13 is con `neeted with the hook 15,l the nut 12 may be adjusted to pro erly osition the lever 14 passes through the spacebetween the sidesl 8' of the arm 1 0 of the-standard 8 and horizontal adjustment of the rod is permitted to accommodate for vproper adjustment of the parts 13 and 14 when the device is -ap plied tocylinders having valve casings 2 of ili'erent shapes or sizes. y

Having thus described" this invention, what is claimed as new is j f 1. Atool of the. class described comprising a standard having a foot at its lower .4 jd

and an oppositely extending arm at its per end, a fiexible fulcrum member adj netable horizontally on said arm, and a s ring enga. ing lever pivoted to said fu crum mem er.y 2. A tool of theclass described comprising a standard having a foot at its lower end eagles and an oppositely eXter-iding.4 arm at its up- .l

per end, a flexible fulcrum member adjustable horizontally on said arm, a springenaging lever pivoted to said fulcrum 1nem er, and an adjustable rest for direct engagement with a valve and mounted on the foot of the standard.

3. A tool of the class described compris-- ing a standard-having a foot at its lower end and an oppositely extending arm at'its up-- perend, a exible fulcrum member adjustable horizontally on said arm, a spring engaging lever pivoted to said fulcrum inember, and a reversible' rest for direct engage# ment with a valve and mounted on the foot of the standard.

4. A tool of the class described comprising a standard, a supporting rod adjustable vertically and horizontally on the standard,

a fulcrum member connected with said supl portingrcd a s ring engaging lever con-y nested with 7the ulcrum member, and a rest pivoted between its ends to the standard for l direct engagement with a valve and reversible on the standard, the pivot point` of the rest bein some distance from a pointcem trally of its length. f

In testimony whereof I aiiX my signature in presence of two witnesses.

BETER PETERSON. Witnesses: R. LoUsTRoM, P. C. FERGUB. 

